Date: Fri, 17 Nov 2000 11:26:02 -0700 From: Warner Losh <imp@village.org> To: Sheldon Hearn <sheldonh@uunet.co.za> Cc: Alfred Perlstein <bright@wintelcom.net>, "Steven E. Ames" <steve@virtual-voodoo.com>, Soren Schmidt <sos@freebsd.dk>, Boris Popov <bp@butya.kz>, Valentin Chopov <valentin@valcho.net>, current@FreeBSD.ORG Subject: Re: CURRENT is freezing again ... Message-ID: <200011171826.LAA75925@harmony.village.org> In-Reply-To: Your message of "Fri, 17 Nov 2000 13:48:35 %2B0200." <2967.974461715@axl.fw.uunet.co.za> References: <2967.974461715@axl.fw.uunet.co.za>
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In message <2967.974461715@axl.fw.uunet.co.za> Sheldon Hearn writes: : The problem with a hard lock-up out of which you can't escape into the : debugger is that it makes meaningful bug reports impossible. My non-SMP : workstation has exhibited apparently arbitrary lock-ups since the advent : of SMPng. You can also short IOCHK to ground to get an NMI which kicks you into the debugger, even in an interrupt context. I have a card I built from an old multi-function card to do this. I think it is A1 and A2, but I don't have my ISA bus spec handy. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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